Datasets

Dataset index

BEAR stores each data source separately (see data/) but also makes available a single BEAR.rds dataset to download. For very large datasets BEAR.rds only contains a smaller selection of rows.

Databases

Dataset Domain Data
clinicaltrials.gov snapshot clinical trials registry of 16.6k clinical trials
Cochrane Database of Systematic Reviews (CDSR) medicine & health 90k studies in 6.6k Cochrane reviews
EU Clinical Trials Register (EU CTR) clinical trials registry of 8.7k clinical trials
Metapsy psychotherapy 1.5k studies in 20 meta-analyses
psymetadata and Nuijten et al psychology / intelligence 2.6k studies across psychology datasets
What Works Clearinghouse education 1.4k education studies

Metascience datasets

Dataset Domain Data
Arel-Bundock et al 2022 political science 2.3k studies in 351 meta-analyses
Askarov et al 2023 economics 1.9k studies from 352 meta-analyses
Bartoš et al. 2025 exercise 2.2k studies in 215 meta-analyses
Brodeur et al. 2024 economics 328 RCTs from econ journals
Costello and Fox 2022; Yang et al 2023, 2024 ecology & evolution 13k studies in 553 meta-analyses
Lang 2025 economics 736 papers from econ journals
Sladekova et al. 2023 psychology 3.5k studies in 406 meta-analyses
Szucs and Ioannidis 2017 cognitive neuroscience 2.3k cognitive neuroscience studies

Replication efforts

Dataset Domain Data
Many Labs 2 psychology 128 replications of 28 effects
Open Science Collaboration 2015 psychology 97 replications of experiments
SCORE social & behavioural sciences replications of 163 claims + 1.9k claims from papers

PubMed/Medline scraped data

Dataset Domain Data
Barnett and Wren 2019 biomedicine 416k studies from MEDLINE/PubMed
Chavalarias et al. 2016 biomedicine 1.9mln studies from MEDLINE/PubMed
Head et al 2015 biomedicine 219k studies from PubMed
Jager and Leek 2014 biomedicine 5.3k articles from 5 medical journals

Reference documents

Document Contents
Documentation Website documentation for shared derivation rules, currently covering p-values and confidence intervals.
Full dataset appendix Stitched dataset notes and shared derivation notes for p-values and confidence intervals.
Dataset construction reference Source-study selection, source-data extraction, and construction details that align with the paper-facing dataset appendix.